Alejandro Llanos Chea, M.D. Assistant Professor School Medical School Department Pediatrics You have reached the Academic Profile. For more information on the doctor and patient care, please visit the clinical profile. Education Medical School Universidad Peruana Cayetano Heredia/Peru (2009) Residency John H. Stroger Jr. Hospital of Cook County (2015), Pediatrics Fellowship Massachusetts General Hospital (2018), Pediatric Gastroenterology